CENTRAL ISLIP - A federal judge held a hearing today about whether to release an internal affairs report that allegedly details how police failed to protect a Nassau mother from her killer.

Jo'Anna Bird, 24, was killed in March 2009 by her estranged boyfriend, Leonardo Valdez-Cruz.

Valdez-Cruz had been the subject of arrests, court orders of protection and direct police contact, all relating to his physical and mental abuse of Bird, including leveling death threats and open defiance of the orders issued by the courts.

Despite Bird and her family's best efforts to have Nassau County police and the Nassau County district attorney enforce court orders, some argue she was not properly protected.

The case was settled, but the report issued about her death has been kept secret.